Finding the Fourth Proportional to 1,635.06, 2,255.89 and 926.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,635.06 : 2,255.89 = 926.79 : x
2. Step 2: Convert to fraction form
   1,635.06/2,255.89 = 926.79/x
3. Step 3: Cross multiply
   1,635.06x = 2,255.89 × 926.79
4. Step 4: Simplify right side
   1,635.06x = 2,090,736.29
5. Step 5: Solve for x
   x = 2,090,736.29/1,635.06
6. Step 6: Final answer
   x = 1,278.69